Southern actor Prithviraj Sukumaran, who makes his Bollywood debut opposite Rani Mukerji in "Aiyaa", claims to be her biggest fan.

"You all say you are big fans of Rani, but I will vouch for the fact that there is probably a bigger fan of Rani here right now, probably of all of Rani's films. I watched all her films and it is a great honour for me to be a part of a film that has Rani in it," the 29-year-old said here Thursday at the launch of the music of the film.

South Indian films are known for their crazy content but Prithvi says "Aiyaa" is the craziest film he has ever worked in.

"To me, this is the craziest film I have been part of. The humour, the dance, the music and wakda and above all Rani, it just doesn't get any crazier than 'Aiyaa.' So get prepared for one hell of a joyride," Prithviraj said.

Produced by Anurag Kashyap, "Aiyaa" has Rani in the role of a Marathi girl who tries to woo the man of her dreams.

Directed by Sachin Kundalkar, "Aiyaa" hits theatres Oct 12.